Wedding ring fight who's right?

I'm a sleep deprived mom of a newborn and two kids I haven't slept in weeks as my husband had no time off of work. Today his brother came over to help fix our car. He was talking about his starting divorce from his second wife for the second time 🙄. He cheated the first time they worked it out and now she's cheating. Anyway he told me he was in her nightstand and found her ring. He was upset she took it off so he took at and put it with his. She then found this ring and put it back in her belongings.

He is telling me this all while not sleeping holding my newborn and again I'm sleep deprived. My initial response was "why were you in her things?" Then it turned into "legally the ring is her's" he had explained he wanted to pawn it. So I explained that in our state they were legally married it is her's to keep. He got mad and walked out.

Later my husband got into a screaming fight with me about how I hurt his brothers feelings. I actually was surprised. I'm really exhausted and I haven't considered his brother at all to be truthful other than I gave him good legal advice. My husband is furious with me. He's currently sleeping in another room.

I'm kind of a deep diver into martial laws in my state my parents have had multiple divorces. I find law really fascinating. This drives my husband insane. He hates I know so much about divorce and he thinks I have embarrassed his brother.

I have no problem to apologize for hurt feelings but am I really wrong for explaining law? I like the guy and don't want him to be making legal mistakes.

Sometimes I just feel like God forbid this small housewife knows anything and tells any man in my family any advice will be wrong.🙄

Update: my husband apologized and admitted he was at fault. That I had been more then hospitable to his brother and my approach was nothing but out of love for him in the way I knew how. He admitted he shouldn't have been yelling at me. That he shouldn't have treated me this way. That they were the ones out of line for their behavior at me. I still intend to send a text to my brother in law for his hurt feelings as that is never my intention but I am still hurt by my husband and honestly there was more to his bad behavior.